no later than
fixed phrase.fixed phrase. at or before a specific time, but definitely not after it.
fixed phrase. a temporal limit specifying a deadline; functions as a complex preposition or adverbial phrase to indicate that an action must occur by a terminal point.
Please submit your homework no later than Friday.
The application must reach the office no later than 5:00 PM on the final day of the month.
The contract stipulates that all structural repairs must be completed no later than thirty days following the initial inspection.
often used in formal instructions, deadlines, and legal requirements.
contrast with 'by', which is more common in casual speech; 'no later than' adds a layer of formal emphasis to the deadline.
Please arrive not later than 6:00.Please arrive no later than 6:00.the fixed phrase uses the determiner 'no' rather than the adverb 'not' to modify the comparative 'later'.